/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:04:05,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:04:05,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:04:05,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:04:05,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:04:05,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:04:05,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:04:05,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:04:05,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:04:05,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:04:05,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:04:05,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:04:05,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:04:05,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:04:05,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:04:05,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:04:05,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:04:05,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:04:05,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:04:05,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:04:05,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:04:05,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:04:05,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:04:05,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:04:05,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:04:05,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:04:05,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:04:05,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:04:05,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:04:05,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:04:05,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:04:05,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:04:05,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:04:05,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:04:05,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:04:05,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:04:05,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:04:05,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:04:05,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:04:05,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:04:05,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:04:05,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:04:05,280 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:04:05,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:04:05,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:04:05,281 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:04:05,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:04:05,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:04:05,282 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:04:05,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:04:05,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:04:05,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:04:05,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:04:05,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:04:05,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:04:05,283 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:04:05,285 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:04:05,285 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:04:05,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:04:05,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:04:05,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:04:05,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:04:05,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:04:05,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:04:05,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:04:05,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:04:05,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:04:05,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:04:05,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:04:05,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:04:05,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:04:05,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:04:05,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:04:05,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:04:05,290 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:04:05,290 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:04:05,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:04:05,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:04:05,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:04:05,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:04:05,532 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:04:05,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2022-01-11 00:04:05,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c093630/925c84d6a1ea46af8139c8cbb8920bf9/FLAGcb7cb9f20 [2022-01-11 00:04:06,007 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:04:06,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2022-01-11 00:04:06,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c093630/925c84d6a1ea46af8139c8cbb8920bf9/FLAGcb7cb9f20 [2022-01-11 00:04:06,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c093630/925c84d6a1ea46af8139c8cbb8920bf9 [2022-01-11 00:04:06,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:04:06,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:04:06,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:04:06,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:04:06,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:04:06,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e0aa56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06, skipping insertion in model container [2022-01-11 00:04:06,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:04:06,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:04:06,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c[4842,4855] [2022-01-11 00:04:06,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:04:06,347 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 00:04:06,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:04:06,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c[4842,4855] [2022-01-11 00:04:06,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:04:06,450 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:04:06,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c[4842,4855] [2022-01-11 00:04:06,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:04:06,527 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:04:06,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06 WrapperNode [2022-01-11 00:04:06,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:04:06,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:04:06,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:04:06,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:04:06,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,578 INFO L137 Inliner]: procedures = 55, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 405 [2022-01-11 00:04:06,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:04:06,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:04:06,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:04:06,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:04:06,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:04:06,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:04:06,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:04:06,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:04:06,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (1/1) ... [2022-01-11 00:04:06,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:04:06,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:04:06,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 00:04:06,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 00:04:06,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:04:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:04:06,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:04:06,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:04:06,755 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:04:06,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:04:07,075 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:04:07,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:04:07,089 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 00:04:07,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:04:07 BoogieIcfgContainer [2022-01-11 00:04:07,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:04:07,092 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:04:07,092 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:04:07,093 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:04:07,096 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:04:07" (1/1) ... [2022-01-11 00:04:07,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:04:07 BasicIcfg [2022-01-11 00:04:07,215 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:04:07,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:04:07,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:04:07,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:04:07,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:04:06" (1/4) ... [2022-01-11 00:04:07,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a4e946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:04:07, skipping insertion in model container [2022-01-11 00:04:07,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:04:06" (2/4) ... [2022-01-11 00:04:07,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a4e946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:04:07, skipping insertion in model container [2022-01-11 00:04:07,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:04:07" (3/4) ... [2022-01-11 00:04:07,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a4e946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:04:07, skipping insertion in model container [2022-01-11 00:04:07,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:04:07" (4/4) ... [2022-01-11 00:04:07,221 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.cTransformedIcfg [2022-01-11 00:04:07,225 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:04:07,225 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 00:04:07,280 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:04:07,285 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 00:04:07,285 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 00:04:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 108 states have (on average 1.4259259259259258) internal successors, (154), 111 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 00:04:07,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:07,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:07,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:07,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:07,312 INFO L85 PathProgramCache]: Analyzing trace with hash 719760253, now seen corresponding path program 1 times [2022-01-11 00:04:07,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:07,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068740724] [2022-01-11 00:04:07,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:07,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:07,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:07,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068740724] [2022-01-11 00:04:07,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068740724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:07,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:07,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:04:07,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779651419] [2022-01-11 00:04:07,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:07,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 00:04:07,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:07,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 00:04:07,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:04:07,590 INFO L87 Difference]: Start difference. First operand has 112 states, 108 states have (on average 1.4259259259259258) internal successors, (154), 111 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:07,626 INFO L93 Difference]: Finished difference Result 213 states and 296 transitions. [2022-01-11 00:04:07,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 00:04:07,628 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-11 00:04:07,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:07,637 INFO L225 Difference]: With dead ends: 213 [2022-01-11 00:04:07,637 INFO L226 Difference]: Without dead ends: 102 [2022-01-11 00:04:07,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:04:07,645 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:07,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:04:07,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-01-11 00:04:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-01-11 00:04:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 101 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:07,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2022-01-11 00:04:07,683 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 136 transitions. Word has length 19 [2022-01-11 00:04:07,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:07,684 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 136 transitions. [2022-01-11 00:04:07,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2022-01-11 00:04:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-11 00:04:07,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:07,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:07,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:04:07,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:07,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:07,687 INFO L85 PathProgramCache]: Analyzing trace with hash -932557623, now seen corresponding path program 1 times [2022-01-11 00:04:07,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471122365] [2022-01-11 00:04:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:07,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:07,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:07,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471122365] [2022-01-11 00:04:07,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471122365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:07,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:07,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:04:07,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924571026] [2022-01-11 00:04:07,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:07,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:04:07,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:07,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:04:07,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:07,779 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:07,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:07,814 INFO L93 Difference]: Finished difference Result 196 states and 264 transitions. [2022-01-11 00:04:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:04:07,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-11 00:04:07,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:07,818 INFO L225 Difference]: With dead ends: 196 [2022-01-11 00:04:07,818 INFO L226 Difference]: Without dead ends: 102 [2022-01-11 00:04:07,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:07,820 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 121 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:07,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 130 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:04:07,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-01-11 00:04:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-01-11 00:04:07,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 99 states have (on average 1.3434343434343434) internal successors, (133), 101 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 133 transitions. [2022-01-11 00:04:07,830 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 133 transitions. Word has length 20 [2022-01-11 00:04:07,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:07,830 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 133 transitions. [2022-01-11 00:04:07,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:07,831 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 133 transitions. [2022-01-11 00:04:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 00:04:07,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:07,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:07,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:04:07,832 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1050421198, now seen corresponding path program 1 times [2022-01-11 00:04:07,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:07,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715919270] [2022-01-11 00:04:07,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:07,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:07,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:07,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715919270] [2022-01-11 00:04:07,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715919270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:07,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:07,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:04:07,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878622935] [2022-01-11 00:04:07,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:07,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:04:07,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:04:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:07,936 INFO L87 Difference]: Start difference. First operand 102 states and 133 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:08,004 INFO L93 Difference]: Finished difference Result 257 states and 338 transitions. [2022-01-11 00:04:08,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:04:08,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-11 00:04:08,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:08,007 INFO L225 Difference]: With dead ends: 257 [2022-01-11 00:04:08,007 INFO L226 Difference]: Without dead ends: 163 [2022-01-11 00:04:08,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:08,010 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 96 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:08,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 230 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:04:08,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-01-11 00:04:08,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 157. [2022-01-11 00:04:08,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 154 states have (on average 1.3246753246753247) internal successors, (204), 156 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 204 transitions. [2022-01-11 00:04:08,027 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 204 transitions. Word has length 23 [2022-01-11 00:04:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:08,027 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 204 transitions. [2022-01-11 00:04:08,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 204 transitions. [2022-01-11 00:04:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-11 00:04:08,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:08,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:08,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:04:08,029 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:08,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1821078487, now seen corresponding path program 1 times [2022-01-11 00:04:08,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:08,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84393206] [2022-01-11 00:04:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:08,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:08,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:08,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84393206] [2022-01-11 00:04:08,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84393206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:08,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:08,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:04:08,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920295292] [2022-01-11 00:04:08,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:08,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:04:08,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:08,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:04:08,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:08,120 INFO L87 Difference]: Start difference. First operand 157 states and 204 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:08,173 INFO L93 Difference]: Finished difference Result 306 states and 400 transitions. [2022-01-11 00:04:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:04:08,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-11 00:04:08,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:08,176 INFO L225 Difference]: With dead ends: 306 [2022-01-11 00:04:08,176 INFO L226 Difference]: Without dead ends: 300 [2022-01-11 00:04:08,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:08,186 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 96 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:08,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 243 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:04:08,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-01-11 00:04:08,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2022-01-11 00:04:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 297 states have (on average 1.3164983164983164) internal successors, (391), 299 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 391 transitions. [2022-01-11 00:04:08,231 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 391 transitions. Word has length 29 [2022-01-11 00:04:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:08,231 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 391 transitions. [2022-01-11 00:04:08,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 391 transitions. [2022-01-11 00:04:08,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 00:04:08,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:08,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:08,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:04:08,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1216585029, now seen corresponding path program 1 times [2022-01-11 00:04:08,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:08,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314040832] [2022-01-11 00:04:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:08,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:08,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:08,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:08,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314040832] [2022-01-11 00:04:08,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314040832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:08,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:08,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:04:08,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900669753] [2022-01-11 00:04:08,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:08,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:04:08,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:08,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:04:08,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:04:08,366 INFO L87 Difference]: Start difference. First operand 300 states and 391 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:08,469 INFO L93 Difference]: Finished difference Result 761 states and 979 transitions. [2022-01-11 00:04:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:04:08,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-11 00:04:08,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:08,471 INFO L225 Difference]: With dead ends: 761 [2022-01-11 00:04:08,472 INFO L226 Difference]: Without dead ends: 469 [2022-01-11 00:04:08,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:04:08,477 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 308 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:08,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 639 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:04:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-01-11 00:04:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 318. [2022-01-11 00:04:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 315 states have (on average 1.2984126984126985) internal successors, (409), 317 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 409 transitions. [2022-01-11 00:04:08,501 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 409 transitions. Word has length 48 [2022-01-11 00:04:08,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:08,502 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 409 transitions. [2022-01-11 00:04:08,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 409 transitions. [2022-01-11 00:04:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 00:04:08,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:08,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:08,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:04:08,504 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:08,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:08,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1068278426, now seen corresponding path program 1 times [2022-01-11 00:04:08,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:08,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47843990] [2022-01-11 00:04:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:08,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:08,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:08,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47843990] [2022-01-11 00:04:08,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47843990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:08,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:08,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:04:08,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311212945] [2022-01-11 00:04:08,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:08,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:04:08,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:08,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:04:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:04:08,565 INFO L87 Difference]: Start difference. First operand 318 states and 409 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:08,671 INFO L93 Difference]: Finished difference Result 902 states and 1142 transitions. [2022-01-11 00:04:08,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:04:08,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-11 00:04:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:08,674 INFO L225 Difference]: With dead ends: 902 [2022-01-11 00:04:08,674 INFO L226 Difference]: Without dead ends: 592 [2022-01-11 00:04:08,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:04:08,675 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 240 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:08,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 476 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:04:08,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-01-11 00:04:08,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 330. [2022-01-11 00:04:08,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 327 states have (on average 1.2874617737003058) internal successors, (421), 329 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 421 transitions. [2022-01-11 00:04:08,700 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 421 transitions. Word has length 48 [2022-01-11 00:04:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:08,702 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 421 transitions. [2022-01-11 00:04:08,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,702 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 421 transitions. [2022-01-11 00:04:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 00:04:08,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:08,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:08,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:04:08,706 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:08,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2093770425, now seen corresponding path program 1 times [2022-01-11 00:04:08,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:08,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302375541] [2022-01-11 00:04:08,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:08,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:08,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:08,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302375541] [2022-01-11 00:04:08,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302375541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:08,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:08,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:04:08,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044047459] [2022-01-11 00:04:08,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:08,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:04:08,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:08,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:04:08,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:08,782 INFO L87 Difference]: Start difference. First operand 330 states and 421 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:08,872 INFO L93 Difference]: Finished difference Result 902 states and 1157 transitions. [2022-01-11 00:04:08,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:04:08,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-11 00:04:08,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:08,875 INFO L225 Difference]: With dead ends: 902 [2022-01-11 00:04:08,875 INFO L226 Difference]: Without dead ends: 580 [2022-01-11 00:04:08,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:08,877 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 82 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:08,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 323 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:04:08,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-01-11 00:04:08,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 574. [2022-01-11 00:04:08,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 571 states have (on average 1.2697022767075306) internal successors, (725), 573 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 725 transitions. [2022-01-11 00:04:08,924 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 725 transitions. Word has length 48 [2022-01-11 00:04:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:08,925 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 725 transitions. [2022-01-11 00:04:08,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:08,925 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 725 transitions. [2022-01-11 00:04:08,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 00:04:08,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:08,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:08,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:04:08,928 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:08,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:08,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1907793864, now seen corresponding path program 1 times [2022-01-11 00:04:08,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:08,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879361874] [2022-01-11 00:04:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:08,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:09,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:09,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879361874] [2022-01-11 00:04:09,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879361874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:09,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:09,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:04:09,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276566742] [2022-01-11 00:04:09,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:09,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:04:09,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:09,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:04:09,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:04:09,005 INFO L87 Difference]: Start difference. First operand 574 states and 725 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:09,177 INFO L93 Difference]: Finished difference Result 1888 states and 2370 transitions. [2022-01-11 00:04:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 00:04:09,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-11 00:04:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:09,181 INFO L225 Difference]: With dead ends: 1888 [2022-01-11 00:04:09,181 INFO L226 Difference]: Without dead ends: 1163 [2022-01-11 00:04:09,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:04:09,184 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 418 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:09,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 674 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:04:09,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2022-01-11 00:04:09,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 686. [2022-01-11 00:04:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 683 states have (on average 1.2620790629575402) internal successors, (862), 685 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 862 transitions. [2022-01-11 00:04:09,275 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 862 transitions. Word has length 48 [2022-01-11 00:04:09,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:09,275 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 862 transitions. [2022-01-11 00:04:09,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,275 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 862 transitions. [2022-01-11 00:04:09,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 00:04:09,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:09,277 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:09,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:04:09,277 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:09,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:09,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1922888205, now seen corresponding path program 1 times [2022-01-11 00:04:09,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:09,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875412350] [2022-01-11 00:04:09,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:09,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:09,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:04:09,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:09,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875412350] [2022-01-11 00:04:09,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875412350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:09,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:09,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:04:09,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003024354] [2022-01-11 00:04:09,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:09,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:04:09,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:09,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:04:09,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:09,340 INFO L87 Difference]: Start difference. First operand 686 states and 862 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:09,382 INFO L93 Difference]: Finished difference Result 686 states and 862 transitions. [2022-01-11 00:04:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:04:09,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-11 00:04:09,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:09,386 INFO L225 Difference]: With dead ends: 686 [2022-01-11 00:04:09,386 INFO L226 Difference]: Without dead ends: 370 [2022-01-11 00:04:09,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:09,388 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 23 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:09,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:04:09,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-01-11 00:04:09,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-01-11 00:04:09,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 369 states have (on average 1.2791327913279134) internal successors, (472), 369 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 472 transitions. [2022-01-11 00:04:09,432 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 472 transitions. Word has length 55 [2022-01-11 00:04:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:09,432 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 472 transitions. [2022-01-11 00:04:09,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 472 transitions. [2022-01-11 00:04:09,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 00:04:09,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:09,434 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:09,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:04:09,434 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:09,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:09,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1088022350, now seen corresponding path program 1 times [2022-01-11 00:04:09,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:09,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29706296] [2022-01-11 00:04:09,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:09,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:04:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-11 00:04:09,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:04:09,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29706296] [2022-01-11 00:04:09,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29706296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:04:09,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:04:09,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:04:09,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697106628] [2022-01-11 00:04:09,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:04:09,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:04:09,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:04:09,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:04:09,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:09,529 INFO L87 Difference]: Start difference. First operand 370 states and 472 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:04:09,597 INFO L93 Difference]: Finished difference Result 827 states and 1055 transitions. [2022-01-11 00:04:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:04:09,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 00:04:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:04:09,599 INFO L225 Difference]: With dead ends: 827 [2022-01-11 00:04:09,599 INFO L226 Difference]: Without dead ends: 465 [2022-01-11 00:04:09,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:04:09,600 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 26 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:04:09,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 108 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:04:09,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-01-11 00:04:09,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 463. [2022-01-11 00:04:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.2640692640692641) internal successors, (584), 462 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 584 transitions. [2022-01-11 00:04:09,653 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 584 transitions. Word has length 61 [2022-01-11 00:04:09,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:04:09,654 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 584 transitions. [2022-01-11 00:04:09,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:04:09,654 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 584 transitions. [2022-01-11 00:04:09,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 00:04:09,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:04:09,655 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:09,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 00:04:09,656 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:04:09,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:04:09,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1379263624, now seen corresponding path program 1 times [2022-01-11 00:04:09,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:04:09,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867236312] [2022-01-11 00:04:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:04:09,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:04:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:04:09,702 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 00:04:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:04:09,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 00:04:09,754 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 00:04:09,755 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 00:04:09,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 00:04:09,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 00:04:09,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 00:04:09,759 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:04:09,762 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 00:04:09,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:04:09 BasicIcfg [2022-01-11 00:04:09,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 00:04:09,895 INFO L158 Benchmark]: Toolchain (without parser) took 3863.92ms. Allocated memory was 185.6MB in the beginning and 269.5MB in the end (delta: 83.9MB). Free memory was 127.6MB in the beginning and 235.8MB in the end (delta: -108.2MB). Peak memory consumption was 130.7MB. Max. memory is 8.0GB. [2022-01-11 00:04:09,896 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 144.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:04:09,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.41ms. Allocated memory was 185.6MB in the beginning and 269.5MB in the end (delta: 83.9MB). Free memory was 127.4MB in the beginning and 226.4MB in the end (delta: -99.0MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-01-11 00:04:09,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.97ms. Allocated memory is still 269.5MB. Free memory was 226.4MB in the beginning and 223.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 00:04:09,896 INFO L158 Benchmark]: Boogie Preprocessor took 40.68ms. Allocated memory is still 269.5MB. Free memory was 223.4MB in the beginning and 221.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 00:04:09,897 INFO L158 Benchmark]: RCFGBuilder took 470.52ms. Allocated memory is still 269.5MB. Free memory was 221.3MB in the beginning and 200.8MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-11 00:04:09,899 INFO L158 Benchmark]: IcfgTransformer took 123.30ms. Allocated memory is still 269.5MB. Free memory was 200.8MB in the beginning and 194.0MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-11 00:04:09,900 INFO L158 Benchmark]: TraceAbstraction took 2678.75ms. Allocated memory is still 269.5MB. Free memory was 193.5MB in the beginning and 235.8MB in the end (delta: -42.3MB). Peak memory consumption was 112.9MB. Max. memory is 8.0GB. [2022-01-11 00:04:09,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 144.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 491.41ms. Allocated memory was 185.6MB in the beginning and 269.5MB in the end (delta: 83.9MB). Free memory was 127.4MB in the beginning and 226.4MB in the end (delta: -99.0MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.97ms. Allocated memory is still 269.5MB. Free memory was 226.4MB in the beginning and 223.4MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.68ms. Allocated memory is still 269.5MB. Free memory was 223.4MB in the beginning and 221.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 470.52ms. Allocated memory is still 269.5MB. Free memory was 221.3MB in the beginning and 200.8MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * IcfgTransformer took 123.30ms. Allocated memory is still 269.5MB. Free memory was 200.8MB in the beginning and 194.0MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 2678.75ms. Allocated memory is still 269.5MB. Free memory was 193.5MB in the beginning and 235.8MB in the end (delta: -42.3MB). Peak memory consumption was 112.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 294]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L302] int pumpRunning = 0; [L303] int systemActive = 1; [L689] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L886] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L267] int retValue_acc ; [L268] int tmp ; [L272] FCALL select_helpers() [L273] FCALL select_features() [L274] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L274] RET, EXPR valid_product() [L274] tmp = valid_product() [L276] COND TRUE \read(tmp) [L278] FCALL setup() [L279] CALL runTest() [L260] CALL __utac_acc__Specification2_spec__1() [L891] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L260] RET __utac_acc__Specification2_spec__1() [L261] CALL test() [L456] int splverifierCounter ; [L457] int tmp ; [L458] int tmp___0 ; [L459] int tmp___1 ; [L460] int tmp___2 ; [L463] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L465] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L467] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L473] tmp = __VERIFIER_nondet_int() [L475] COND TRUE \read(tmp) [L477] CALL waterRise() [L113] COND TRUE waterLevel < 2 [L114] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L477] RET waterRise() [L483] tmp___0 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___0) [L487] CALL changeMethaneLevel() [L125] COND FALSE !(\read(methaneLevelCritical)) [L128] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L487] RET changeMethaneLevel() [L493] tmp___2 = __VERIFIER_nondet_int() [L495] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=29, tmp___0=33, tmp___2=1, waterLevel=2] [L508] CALL timeShift() [L310] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L317] COND TRUE \read(systemActive) [L319] CALL processEnvironment() [L339] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L342] COND TRUE ! pumpRunning [L344] CALL, EXPR isHighWaterLevel() [L436] int retValue_acc ; [L437] int tmp ; [L438] int tmp___0 ; [L442] CALL, EXPR isHighWaterSensorDry() [L175] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L178] COND FALSE !(waterLevel < 2) [L182] retValue_acc = 0 [L183] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L442] RET, EXPR isHighWaterSensorDry() [L442] tmp = isHighWaterSensorDry() [L444] COND FALSE !(\read(tmp)) [L447] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L449] retValue_acc = tmp___0 [L450] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L344] RET, EXPR isHighWaterLevel() [L344] tmp = isHighWaterLevel() [L346] COND TRUE \read(tmp) [L348] CALL activatePump() [L367] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L348] RET activatePump() [L319] RET processEnvironment() [L325] CALL __utac_acc__Specification2_spec__2() [L896] int tmp ; [L897] int tmp___0 ; [L901] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L901] RET, EXPR isMethaneLevelCritical() [L901] tmp = isMethaneLevelCritical() [L903] COND TRUE \read(tmp) [L905] CALL, EXPR isPumpRunning() [L391] int retValue_acc ; [L394] retValue_acc = pumpRunning [L395] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L905] RET, EXPR isPumpRunning() [L905] tmp___0 = isPumpRunning() [L907] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L908] COND FALSE !(\read(methAndRunningLastTime)) [L913] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L325] RET __utac_acc__Specification2_spec__2() [L508] RET timeShift() [L465] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=29, tmp___0=33, tmp___2=1, waterLevel=2] [L467] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=29, tmp___0=33, tmp___2=1, waterLevel=2] [L473] tmp = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=33, tmp___2=1, waterLevel=2] [L483] tmp___0 = __VERIFIER_nondet_int() [L485] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L493] tmp___2 = __VERIFIER_nondet_int() [L495] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L508] CALL timeShift() [L310] COND TRUE \read(pumpRunning) [L312] CALL lowerWaterLevel() [L101] COND TRUE waterLevel > 0 [L102] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L312] RET lowerWaterLevel() [L317] COND TRUE \read(systemActive) [L319] CALL processEnvironment() [L339] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L342] COND FALSE !(! pumpRunning) [L357] FCALL processEnvironment__wrappee__base() [L319] RET processEnvironment() [L325] CALL __utac_acc__Specification2_spec__2() [L896] int tmp ; [L897] int tmp___0 ; [L901] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L901] RET, EXPR isMethaneLevelCritical() [L901] tmp = isMethaneLevelCritical() [L903] COND TRUE \read(tmp) [L905] CALL, EXPR isPumpRunning() [L391] int retValue_acc ; [L394] retValue_acc = pumpRunning [L395] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L905] RET, EXPR isPumpRunning() [L905] tmp___0 = isPumpRunning() [L907] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L908] COND TRUE \read(methAndRunningLastTime) [L910] CALL __automaton_fail() [L294] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - UnprovableResult [Line: 294]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 294]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 112 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1410 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1410 mSDsluCounter, 3034 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1611 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 1423 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=686occurred in iteration=8, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 904 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 462 NumberOfCodeBlocks, 462 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 1201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 21/21 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-11 00:04:09,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...